瞬时功率
- instantaneous power
-
如果w是功,dw/dt,,if,w,is,the,work,在t时间的瞬时功率。
Dw / dt is the instantaneous power at time t.
-
PWM整流器瞬时功率控制策略研究
Study on Instantaneous Power Control Strategy for the PWM Rectifier
-
瞬时功率控制在三相PWM整流中的应用
Application of Instantaneous Power Control to Three-phase PWM Rectifiers
-
基于fMRI瞬时功率的独立成分分析
Independent Component Analysis Based on Instantaneous Power of fMRI Data
-
研究了基于DSP的瞬时功率控制方法在三相PWM整流中的应用,结合仿真建立了一种新型的开关状态表。
This paper researches on the method of instantaneous power control to three-phase PWM rectifier based on DSP , and proposes a new type of switching table .
-
根据瞬时功率理论建立了功率控制系统数学模型,采用频域设计方法设计了相应的分数阶PIλ控制器参数。
The fractional-order PI λ controller is designed with the frequency-domain method with the mathematical model of the power control system based on instantaneous power theory .
-
针对直接功率控制中开关频率变化问题,通过对PWM整流器瞬时功率分析推导,提出一种内环直接采用电流控制的新型准定频直接功率控制策略。
To alleviate the problem of variable switching frequency , a novel quasi DPC control strategy with current loop was represented through the analysis of PWM rectifier instantaneous power .
-
根据合同交易功率分摊理论,EMS瞬时功率测量,提出了用户对输电设备的MVA积分使用程度概念及其算法。
Based on the power allocation method and EMS instantaneous power measurement , the MVA allocation method of customer 's usage to facilities is proposed .
-
传统瞬时功率理论与p-q-r功率理论的一致性
Analysis on Consistency Between Traditional Instantaneous Reactive Power Theory and p-q-r Theory
-
应用瞬时功率理论分析PWM整流器功率控制原理,通过虚拟磁链估计有功功率和无功功率,用MATLAB实现了直接功率控制,并验证了该控制方法的正确性。
By applying instantaneous power theory , the principle of PWM rectifier power control is analyzed , and the Direct Power Control by MATLAB Toolbox through estimating active power and reactive power with virtual flux is realized , and the simulation results prove that it is correct .
-
其次,引入交流电机定子磁链的概念,利用虚拟磁链矢量进行定向控制和瞬时功率估算,得到一种无电网电压传感器的DPC策略。
The virtual flux is used to orientation control and instantaneous power estimating . A kind of DPC strategy without power grid voltage sensor is gotten and the cost of system construction is reduced .
-
推导了使用OVSF码的CDMA系统下行链路信号瞬时功率表达式,分析了OVSF码构成的最大游程长度不小于8的组合码个数对信号PAPR的影响。
The expression of down link signal instantaneous power in CDMA systems was deduced , and the influences of the number of the combined codes with maximum run-length of 8 or longer on PAPR were observed .
-
作者根据瞬时功率理论推导出了消除VSC传输功率波动需要满足的正、负序输出电压间的关系式。
According to the theory of instantaneous power , the relational expression of the relation between positive sequence voltage and negative sequence voltage , which should be satisfied in order to eliminate the transmitted power of VSC , is deduced .
-
根据MVA贡献因子理论,非线性函数值贡献因子理论,EMS瞬时功率测量,提出了用户对输电设备的MVA积分使用程度概念及其算法。
Based on the MVA contribution factor theory , the contribution factor theory of non linear functional value and the EMS instantaneous power measurement , the concept of MVA integration usage of power device by user and its algorithm are given .
-
为寻求性能优良、容易实现的配电静止同步补偿器(DSTATCOM)的电压控制策略,根据DSTATCOM系统中的瞬时功率平衡理论,推导出了DSTATCOM用于控制电压时的直接电压控制策略。
Based on the balance of the instantaneous power of the distribution static synchronous compensator ( DSTATCOM ) system the direct output voltage control strategy for voltage control is proposed .
-
以MLJ300密炼机微机智能控制系统为工具,采用瞬时功率与温度综合控制方法控制混炼过程,大大提高了混炼胶质量的稳定性。
The stability of mix quality is improved by combining the temperature control with the instantaneous power control using MLJ300 computer aided internal mixer control system .
-
通过动力学仿真,计算Robo-Mackerel的游速、推进力、瞬时功率和平均效率等水下推进性能指标。
By means of dynamics simulation the targets of propulsive performance under water as the swimming speed , propulsion force , instantaneous power and average efficiency etc.
-
提出了一种基于瞬时功率分解算法(IPDT)的感应电机定子线圈故障诊断方法,导出了故障负序电流的近似表达式;
A method to diagnose the stator fault of induction motors based on Instantaneous Power Decomposition Technique ( IPDT ) was presented , and the approximate expression of the fault negative sequence current was derived .
-
提出了基于同步旋转坐标系的三维复空间瞬时功率定义方法,可以很好的解释三相VSR控制中各瞬时功率分量,适合于三相VSR不平衡控制和功率分析。
The thesis also gave out a new three-dimension complex space power definition based on the synchronous rotating coordinate and this definition can explain all kinds of the instantaneous power component and is suitable for the VSR control and the power analysis of the unbalanced case .
-
阐述了p-q-r瞬时功率理论的原理,提出了基于该理论的统一电能质量控制器(UPQC)的直接控制策略,探讨了将其用于三相四线非线性及不平衡系统中的实现方法。
The p-q-r instantaneous power theory is introduced , based on which a direct control strategy of UPQC ( Unified Power Quality Conditioner ) is presented and its implementation in non-linear and unbalanced three-phase four-wire system is discussed .
-
基于瞬时功率理论的静止无功补偿新算法
New Control Method of SVC Based on Instant Reactive Power Theory
-
三相交流电路中瞬时功率的分析和研究
Analysis and Study on Instantaneous Power of Three-phase AC Circuit
-
瞬时功率分解算法在感应电机定子故障诊断中的应用
Application of instantaneous power decomposition technique in induction motors stator fault diagnosis
-
无功补偿系统中瞬时功率理论的比较研究
Comparison about Instantaneous Power Theory in Idle Work Compensation System
-
车辆系统非平稳随机振动的瞬时功率谱
Instantaneous Power Spectrum of Nonstationary Random Vibration of Vehicle Systems
-
基于四维复数概念的瞬时功率定义
Defining instantaneous power components based on the concept of four-dimension complex number
-
通用瞬时功率定义及广义谐波理论
A universal definition of instantaneous power and broad-sense harmonic theory
-
通用瞬时功率理论在三相不平衡负荷补偿中的应用
Application of universal instantaneous power theory to unbalanced load compensation
-
第二心音信号的瞬时功率和功率谱极大值分析
Instantaneous power maxima and power spectrum maxima analysis of second heart sounds signals
-
本文介绍了一种集成电路芯片瞬时功率测量-采集-分析系统。
This paper introduces an instantaneous power dissipation measure-collect-analysis system for integrated circuits .